/* This script and many more are available free online at 
The JavaScript Source :: http://javascript.internet.com 
Created by: Ultimater, Mr J :: http://www.webdeveloper.com/forum/showthread.php?t=77389 */ 

function toggle(a) 
{ 
    var e = document.getElementById(a); 
     if(!e) return true; 
      if(e.style.display == "none") 
      { 
           e.style.display = "block" 
     } 
      else 
      { 
           e.style.display = "none" 
      } 
      return true; 
} 